So I have been experimenting with different ways to earn money using your smart phone. One of the apps I came across was fronto. Basically you get points every time you unlock your phone. As far as I know, this app is for Android devices only. Here is a screenshot so you know that you are downloading the correct app.
I got enough points to get an Amazon gift card and to cash out for some paypal money. Here is the payment proof for the paypal.